Background technology
In current automotive seat industry, the market share occupancy volume of manual regulation seat is very high, and this just means: if do some technological inventions, innovation in this block field, will promote the larger progress of whole industry, can bring higher benefit to whole market.
In manual regulation seat in the market, there is slideway release mechanism various in style.And automotive engineer is annoying for the following significant problem of these manual slideway release mechanisms always:
1) release mechanism, can only export a kind of releasing force.Obtain different releasing forces, need redesign and change different parts;
2) release mechanism, can only a corresponding unblock stroke.Obtain different unblock strokes, need redesign zero and change different parts;
3) NVH aspect: operation abnormal sound;
4) configuration aspects: complex structure, stability is low;
5) cost aspect: due to the structure of complexity, causes part kind, quantity too many, and single-piece and die sinking cost remain high.
The above-mentioned defect existing for existing slideway release mechanism is described in detail below with a traditional manual unlocking structure:
See Fig. 1, the traditional manual unlocking structure provided in Fig. 1 comprises trip lever 14, left, lock support 9 is separated on right side, 9a, left, right hand grip bar linkage piece 3, 3a, left, right hand grip interlock seat 13, 13a, left, right side reduction torsion spring 4, 4a, left, right side packing ring 5, 5a, pipe link 10, left, right side limiting bracket 2, 2a, lockable mechanism in addition in Fig. 1 comprises a left side, right side slide rail assembly 1, 1a carries out the left side of the locking and unlocking, rightward pawl 7, 7a, left, right hand grip bar 11, 11a, left, fixed plate 12 before right hand grip, 12a, left, right hand grip upper mounted plate 6, 6a, torsion spring 8, 8a, although above-mentioned manual unlocking structure adopts bilateral symmetry form, but its number of parts is still more, therefore complex structure, cost is high.
In addition see Fig. 2 and Fig. 3, traditional slideway release mechanism is the front end interlock of left and right side handle seat 13,13a being separately fixed at left and right side solution lock support 9,9a, the manual linkage piece 3 of left and right side, 3a one end are inserted in the groove of left and right side handle interlock seat 13,13a, the manual linkage piece of left and right side 3, the 3a other end ride on the left and right glidepath of left and right side slide rail assembly 1,1a respectively, the rear end of left and right side solution lock support 9,9a and pipe link 10 fork-join.The two ends of pipe link 10 are connected with left and right side limiting bracket 2,2a respectively, and left and right side reduction torsion spring 4,4a are enclosed within the two ends of pipe link 10 respectively, and this fit structure has following two shortcomings:
(1) there is larger gap between drive disk assembly, cause part improper friction, shock in motion process, thus produce noise and abnormal sound.
(2) when release mechanism moves to end position or collides, release mechanism is easily thrown off, and causes release mechanism to lose efficacy.And the exoskeletal support in side that left and right side handle interlock seat 13,13a coordinate with left and right side solution lock support 9,9a, is very easy to fracture.
Summary of the invention
Technical matters to be solved by this invention be many for the number of parts existing for existing slideway release mechanism, complex structure, cost are high, noise is large and easily unlock the problems such as inefficacy and provide that a kind of number of parts is few, structure is simple, cost is low, noise is low, unlocks stable slideway release mechanism.This slideway release mechanism also has an important feature to be exactly only need to regulate the wherein position of swinging strut on trip lever just can obtain the slideway release mechanism of different releasing forces and unblock stroke, without the need to manufacturing again in addition, facilitating production control and adapting to different user's requirements.
Technical matters to be solved by this invention can be achieved through the following technical solutions:
A kind of slideway release mechanism, comprising:
Be fixed on the left and right support on left and right slip assembly;
One U-shaped trip lever, the end of two montants of described U-shaped trip lever is hinged with described left and right support respectively;
The left and right swinging strut of kink on the left and right montant of described U-shaped trip lever, described left and right swinging strut is provided with a coupling end, and the coupling end on described left and right swinging strut is fixedly connected with left and right handlebar stem respectively.
In a preferred embodiment of the invention, described left and right swinging strut all offers a waist shaped hole, two montants of described U-shaped trip lever are each passed through the waist shaped hole on left and right swinging strut.
In a preferred embodiment of the invention, a flexible liner is lined with in waist shaped hole on described left and right swinging strut, the peritreme of the waist shaped hole on the outer rim of described flexible liner and left and right swinging strut is fastenedly connected, and two montants of described U-shaped trip lever are each passed through the flexible liner in the waist shaped hole on left and right swinging strut.
In a preferred embodiment of the invention, described flexible liner is provided with the flexible flank that the left and right montant of U-shaped trip lever described in a subtend and left and right support hinge-point direction extend, and the pair of flexible flank on the flexible liner in the waist shaped hole on described left and right swinging strut holds the left and right montant of U-shaped trip lever respectively flexibly.
In a preferred embodiment of the invention, described flexible liner is rubber bush.
In a preferred embodiment of the invention, described flexible flank is the large shape in little rear end, front end.
In a preferred embodiment of the invention, the end of two montants of described U-shaped trip lever respectively by shoulder bolt and nut and described left and right support hinged, this shoulder bolt has the thread end of a large diameter optical axis section and minor diameter, the end of two montants of wherein said U-shaped trip lever is all offered porose, also offering porose in the lower end of left and right support, rolls with the major diameter optical axis section on described shoulder bolt and coordinates in the hole of the end of two montants of described U-shaped trip lever and the hole of left and right pedestal lower end.
In a preferred embodiment of the invention, described nut is welded with in the lower end inside face epirelief of left and right support, projection welding is coaxial with the hole of left and right pedestal lower end respectively at described nut on the lower end inside face of left and right support, and the thread end of the minor diameter of described shoulder bolt screws in corresponding nut.
In a preferred embodiment of the invention, in major diameter optical axis section on described shoulder bolt, cover has a shock absorbing bushing, shock absorbing bushing rolls with the major diameter optical axis section on shoulder bolt and coordinates, and the periphery of the hole of the end of two montants of described U-shaped trip lever and the hole of left and right pedestal lower end and described shock absorbing bushing closely cooperates.
Owing to have employed above technical scheme, slideway release mechanism of the present invention has following significant advantage:
1) mechanism element kind, quantity are few
The all parts of the present invention adopt and design from symmetry approach, only need U-shaped trip lever, left and right support, left and right swinging strut, two flexible liners, two shoulder bolts and two shock absorbing bushings can form slideway release mechanism, greatly reduce relative to existing slideway release mechanism part kind and quantity, reduce part manufacturing cost and assembly cost, there is the market advantage of highly significant.Moreover left and right support, left and right swinging strut, two flexible liners, two shoulder bolts and two shock absorbing bushings can exchange, also reduce further the die sinking cost that part manufactures.
2) GD & T tolerance compensating function
Slideway assembly, cushion assembly according to GD & T rule, allow it to there is welding, assembly error in X, Y, Z-direction when assembling.The present invention by offering waist shaped hole and install flexible liner additional in waist shaped hole on left and right swinging strut, compensate the GD & T tolerance in allowed band, and without the need to adding any frock clamp again to ensure or reducing assembly error, can ensure that release mechanism operation is smooth, feel is excellent.
3) Stability Analysis of Structures, nothing operation abnormal sound
Two montants of U-shaped trip lever are inserted in the rubber bush in the waist shaped hole of left and right swinging strut by the present invention, the waist shaped hole rigid fit of rubber bush and swinging strut, rubber bush has two little large flexible flanks above below, two flexible flanks can ensure to apply pressure to two montants of U-shaped trip lever all the time at motion process, thus elimination gap, reduce noise.Due to the waist shaped hole rigid fit in rubber bush surrounding and swinging strut, there is annular brace, so the present invention can not throw off in any position as existing slideway release mechanism, thus considerably increase fastness and the durability of slideway release mechanism of the present invention.
4) for the user different releasing force proposed and the requirement unlocking stroke, the present invention only needs before left and right swinging strut welds with left and right handlebar stem, regulate the position of left and right swinging strut on two montants of U-shaped trip lever and then weld, just can obtain different releasing forces and unlock the slideway release mechanism of stroke.Do not need as needing change part just can obtain different releasing forces in existing slideway unlocking structure and unlocking the slideway release mechanism of stroke, this also reduce further the manufacturing cost of part.
Detailed description of the invention
The present invention is further described below in conjunction with the drawings and specific embodiments.
See a kind of slideway release mechanism provided in Fig. 4 and Fig. 5, figure, comprise the identical left and right support 100 of structure, 100a, U-shaped trip lever 200, left and right swinging strut 300,300a that structure is identical.
The slideway lockable mechanism provided in Fig. 4 with Fig. 5 is identical with existing slideway lockable mechanism structure, include a left side, right slide rail assembly 400, 400a, left, rightward pawl 500, 500a, left, right hand grip bar 600, 600a, left, fixed plate 700 before right hand grip, 700a, left, right hand grip upper mounted plate 800, 800a and a left side, right torsion spring 900, 900a, left, right slide rail assembly 400, 400a comprises a left side, right slide rail 410, 410a, left, right slide rail plate 420, 420a, left, right slide rail 410, 410a is respectively by two sliding rail racks 430, 440, 430a, 440a is arranged in body platform (not shown).Left and right side handlebar stem 600,600a are arranged on left and right slide rail plate 420,420a by fixed plate 700,700a, left and right side handle upper mounted plate 800,800a before left and right side handle respectively, left and right torsion spring 900,900a are enclosed within left and right side handlebar stem 600 respectively, locking reset is carried out to left and right side handlebar stem 600,600a in the rear end of 600a, and left and right side ratchet 500,500a are welded on left and right side handlebar stem 600,600a.
Left and right support 100 in slideway release mechanism, the substantially L-shaped shape in 100a cross section, the end anchorage of its transverse slat part 110,110a, on left and right slide rail plate 420,420a, is offered porose 121,121a and is welded with left and right nut 122, the 122a coaxial with hole 121,121a in the lower end inside face epirelief of riser portion 120,120a in the lower end of its riser portion 120,120a.
U-shaped trip lever 200 has one and is convenient to manually operated crossbar sections 210 and left and right montant part 220,220a, also offers porose 221,221a at the end of left and right montant part 220,220a.
The identical left and right swinging strut 300 of structure, 300a all offer a waist shaped hole 310,310a be provided with hook portion 320, the 320a of a formation coupling end in the one end away from waist shaped hole 310,310a.
This slideway release mechanism also comprises the identical left and right shoulder bolt 230 of structure, 230a includes one section of large diameter optical axis end 231,231a and section thread segment 232,232a, and large diameter optical axis end 231,231a are between bolt cap 233,233a and thread segment 232,232a.
This slideway release mechanism also comprises structure identical left and right shock absorbing bushing 240,240a, and left and right shock absorbing bushing 240,240a all adopt plastics such as nylon to make.
This slideway release mechanism also comprises structure identical left and right rubber bush 330,330a, left and right rubber bush 330,330a all there is a kidney-shaped annulus 331,331a and stretched out by kidney-shaped annulus 331,331a and symmetrically arranged flank 332,333,332a, 333a.
The assembling mode of slideway release mechanism of the present invention is as follows:
First by the transverse slat part 110 of left and right support 100,100a, the end anchorage of 110a on left and right slide rail plate 420,420a, left and right rubber bush 330,330a are snapped onto in left and right swinging strut 300, the waist shaped hole 310 of 300a, 310a, the waist shaped hole 310 of the kidney-shaped annulus 331 of left and right rubber bush 330,330a, 331a and left and right swinging strut 300,300a, 310a interference fit or snap fit, make left and right rubber bush 330,330a can not drop out by the waist shaped hole 310 of left and right swinging strut 300,300a, 310a.
By the left and right montant part 220 of U-shaped trip lever 200,220a through left and right rubber bush 330,330a.
Then by a left side, right shock absorbing bushing 240, 240a is enclosed within a left side, right shoulder bolt 230, the large diameter optical axis end 231 of 230a, on 231a, again by a left side, right shoulder bolt 230, 230a is each passed through a left side for U-shaped trip lever 200, right montant part 220, the hole 221 of 220a end, 221a and a left side, right support 100, the riser portion 120 of 100a, the hole 121 of 120a lower end, 121a is screwed into a left side, right nut 122, in 122a, left, right shoulder bolt 230, 230a is in turn process, by a left side, right shock absorbing bushing 240, 240a is pressed into a left side for U-shaped trip lever 200, right montant part 220, the hole 221 of 220a end, 221a and a left side, right support 100, the riser portion 120 of 100a, the hole 121 of 120a lower end, in 121a, make a left side for U-shaped trip lever 200, right montant part 220, 220a end is with left, right support 100, the riser portion 120 of 100a, 120a forms hinged relationship between lower end.
Riser portion 120, the 120a of the left and right montant part 220 of such U-shaped trip lever 200,220a and left and right support 100,100a all directly can not contact with left and right shoulder bolt 230, the large diameter optical axis end 231 of 230a, 231a, thus reduce noise, also compensates for the GD & T tolerance in allowed band simultaneously.
According to the releasing force required by client and unblock stroke, regulate left and right swinging strut 300, the 300a position on left and right montant part 220,220a, after regulating, left and right swinging strut 300, the hook portion 320 of 300a, 320a are ridden over left and right side handlebar stem 600,600a firm welding can complete assembling.
See Fig. 6 and Fig. 7, after assembling, the flank 332 of left and right rubber bush 330,330a, 333,332a, 333a extend to the left and right montant 220 of U-shaped trip lever 200,220a and left and right support 100,100a hinge-point direction, hold left and right montant 220, the 220a of U-shaped trip lever 200 flexibly, ensure to apply pressure to the left and right montant 220 of U-shaped trip lever 200,220a all the time at motion process, thus elimination gap, reduce noise.
Work of the present invention and motion principle as follows:
See Fig. 8, the crossbar sections 210 of U-shaped trip lever 200 is lifted with hand, a left side for U-shaped trip lever 200, right montant 220, 220a is around a left side for U-shaped trip lever 200, right montant 220, 220a is with left, right support 100, 100a hinge-point swings upwards into dotted line position, a left side for U-shaped trip lever 200, right montant 220, 220a makes a left side, right rotation support 300, 300a upwards turn to dotted line position in figure, now left, right rotation support 300, 300a drives a left side, right hand grip bar 600, 600a rotates an angle, left, right hand grip bar 600, drive left in 600a rotation process, rightward pawl 500, 500a upwards overturns an angle, left, rightward pawl 500, 500a deviates from a left side, right slide rail 410, perforation 411 on 410a side, 411a realizes unlocking.In releasing process, left and right torsion spring 900,900a accumulation of energy, after loosing one's grip, left and right torsion spring 900,900a release drives left and right side handlebar stem 600,600a reverses an angle, drive left and right side ratchet 500,500a to overturn an angle downwards in left and right side handlebar stem 600,600a Umklapp process, left and right side ratchet 500,500a reinsert in perforation 411 on left and right slide rail 410,410a side, 411a and realize locking.Simultaneously drive left and right swinging strut 300 in left and right side handlebar stem 600,600a Umklapp process, 300a turn to solid line position in figure downwards and reset, and left and right swinging strut 300, in the downward switching process of 300a, drive U-shaped trip lever 200 to transfer to solid line initial position in figure.
See Fig. 8, suppose that U-shaped trip lever 200 is at external force F
1rotate under effect, corner is φ
2.The center of the crossbar sections 210 of U-shaped trip lever 200 is L to the vertical distance of the left and right montant 220 of U-shaped trip lever 200,220a and left and right support 100,100a hinge-point
2, left and right swinging strut 300,300a are L to the distance of the left and right montant 220 of U-shaped trip lever 200,220a and left and right support 100,100a hinge-point
1.
See Fig. 9, suppose the waist shaped hole 310 of left and right swinging strut 300,300a, the radius of 310a is R, length is L
4, distal center is L to the distance at the center of left and right side handlebar stem 600,600a
3.The distance at the left and right montant 220 of U-shaped trip lever 200, the center of 220a to the center of left and right side handlebar stem 600,600a is L
5.
1) computing of releasing force
Because the original upload angle of the left and right torsion spring 900 in lockable mechanism, 900a is 170.9 °, whole lockable mechanism initial condition is made to be in lock position, as shown in Figure 8.Elasticity modulus due to left and right torsion spring 900,900a is k, so the predetermincd tension of initial condition is:
F
pretension=170.9 ° × k (1)
The left and right montant 220 of left and right swinging strut 300,300a and U-shaped trip lever 200, the movement relation of 220a, sport dynamics sketch as shown in Figure 10 can be reduced to, now the left and right montant 220 of U-shaped trip lever 200,220a act on left and right swinging strut 300,300a power be F
2.Because the left and right side handlebar stem 600 in lockable mechanism, 600a move in a circle, so F
2be applied to the tangential force F of left and right swinging strut 300,300a
3for:
F
3=F
2×cosφ
1(2)
As the left and right side handlebar stem 600 in lockable mechanism, 600a anglec of rotation φ
1time, torsion spring is produced as moment of torsion M
1for:
Left and right torsion spring 900,900a are produced as moment of torsion M
1for balancing F
3the moment of torsion produced, that is:
M
1=F
3×L
5(4)
F
2and F
1moment balance closes:
F
1×L
2=2×F
2×L
1
(5)
External force F can be drawn by formula (1) (2) (3) (4) (5)
1with φ
1, L
1, L
2, L
5pass be:
Verify with mechanism parameter of the present invention, the parameters that the present invention is unlocking the moment is:
L
1=101.1mm
L
2=259.4mm
L
5=31.1mm
φ
1=43°
k=0.6
Releasing force F can be calculated according to above data
1=43.1N, the actual releasing force that records is 43.5N, is consistent with actual.
This formula can develop into the form being inputted switching mechanism size by client:
Need trip lever length:
Need swinging strut length:
From above formula, when part shape size constancy, only need change left and right swinging strut 300,300a is L to the distance of the left and right montant 220 of U-shaped trip lever 200,220a and left and right support 100,100a hinge-point
1, just can obtain different releasing force F
1.
2) computing of stroke is unlocked
Because lockable mechanism of the present invention devises GD & T tolerance supplementary functions, U-shaped trip lever 200 for the angle tolerance of slideway assembly be defined as ± 1.5 °, the unblock forced stroke φ of U-shaped trip lever 200
2-| ± 1.5 ° |, composition graphs 8, Fig. 9, Figure 10 and Figure 11, when left and right swinging strut 300,300a rotate φ
1during angle, the stroke height H of U-shaped trip lever 200 is:
H=L
1×tan(φ
2-1.5°)(7)
Geometric relationship as shown in figure 11, if mechanism runs smooth and easy, then needs to meet following relation:
H=tanφ
1×L
5(8)
L
5≥L
3-L
4(9)
In sum, the unblock stroke of U-shaped trip lever 200 and the pass of mechanism parameter are:
Wherein restriction relation is:
Verify with mechanism parameter of the present invention, in the present invention, get
the parameters that the present invention is unlocking the moment is:
L
1=101.1mm,L
3=42.53mm,L
4=11.42mmL
5=31.1mm,φ
1=43°
Try to achieve and unlock angle φ
2≈ 14.5 °
From above formula, when part shape size constancy, only need change the distance L of the left and right montant 220 of left and right swinging strut 300,300a and U-shaped trip lever 200,220a and left and right support 100,100a hinge-point
1, just can regulate unblock angle, regulate and unlock stroke.